Spool



NOV. 1, 1932. c, K, DUNLAP 1,885,693

SPOOL Filed Dec. 15. 1930 Patented 1 1932 "UNITED STATES- PATENT OFFICE.

GHiARLES K. DUNLAP, OF HARTSVILLE, SOUTH CAROLINA, ASSIGNOR T SONOOOPROD- UCTS comment, or canom u HARTS'VILLE, SOUTH CAROLINA, ACORPORATION OF SOUTH SPOOL Application filed December 15, 1930. SerialNo. 502,517.

o This invention relates to spools, reels, bobbins, or like windingdevices, and more particularly to means for securing the end dlscs orflange members to the barrels or body porlltions thereof.

The' general object of th1s mventlon 1s to a provide an improved spoolfor thread, wire,

or the like, in which the end discs or flan e members are rigidlyfastened to the b0 y member by means of novel securing elements,

the particular construction of which also forms an important feature ofthe invention. The present invention contemplates the provision of apractical and simply constructed securing element, a portion of-which isadapted-to receive and enclose an end of the barrel or body member ofthe spool or bobbin, and which is further provided w1th means forretaining the end discs.

' Other. objects and features of novelty will vbe apparent from thefollowing spe'cificatlon when'read in connection with the accompanyingdrawing in which certain embodiments of the invention are illustrated byway of example; 7

In the drawing: Figurel is a view in side elevation of one embodiment ofmy invention, a portion thereof being, shown in vertical cross-section;

Figure 2 is a transverse, vertical, sectional view taken on line 2 2 ofFigure 1;

Figure 3 is a view similar to Figure 1 showinganother embodiment of theinvention; and

Figure 4 is a fragmentary end view of the I spool illustrated inFigure-3.

In all of the exemplary embodiments of my invention illustrated in thedrawing, the body members or barrels of the spools are designated by thenumeral 10, and the end discs or flange members by the numeral 11. Asillustrated, the body members comprise tubular cylinders constructedpreferably of pasteboard or a similar material, but it will beunderstood that in all forms of the invention, except those in which abushing or plug is inserted in the end of the body members, there may beemployedsolid body members constructed of the same material, or wood, orthe like.

The fastening means employed in the v spool or .winding deviceillustrated in Figures 1 and 2 will now be described. This meanscomprises an annular fastening element designated generally by thenumeral 12. The major portion of element 12 comprises the cylindricalportion 13 within Which the end of the body member 10 is adapted tosnugly fit. At the outer end of the cylindrical portion 13 there isformed an annular shouldered portion 14; against the interior surface 15of which the end of the body portion 10 is adapted to abut. From theinner rim of the annular portion 14, a narrowed, cylindrical portion 16is adapted to extend through the central aperture 17 provided in the enddisc 11. After the end disc 11 is applied to the cylindrical or tubularportion 16 of the fastening element, the

outer edges of this portion arc spun or flared radially outwardly as at18 in order to overlap and firmly clamp the margins of the aperture 17between the flared flange 18 and the outer surface 19 of the shoulderedportion 14. I

As a means for more rigidly securing the fastening element 12 to thebarrel or body portion 10 of the spool, the inner edge of thecylindrical portion 13 is crimped radially inwardly as at 20 so as to beembedded slightly in the material of the body member 10. The

rounding or beveling of this inner edge of the fastening element 12 alsoprovides a smoother junction between the winding surfaces of thefastening element and the barrel "or body member; -As a further meansfor more rigidly securing the fastening element to the body member, aspur or prong 21 may be struck inwardly from the material of thecylindrical portion 13 of the securing elegient so as to be embedded inthe body mem- Y If desired, the body member of the spool 12 andwithinthe end of the tubular body radially member 10. In constructionsin which this bushing is employed, it is advisable to make the internaldiameters of the body member 10 and of the narrow tubular portion 16 thesame. In other cases, the diameter of the portion 16 may be made of anysuitable dimension. The bushing 23 is preferablyprovided with a centralbore 24 for the reception of a shaft or axle for the spool. In cases inwhich the bushing 23 is not employed, the internal diameter 0 theportion 16 may be predetermined with regard to the diameter of the shaftor axle to be used, just as in the case of the embodiment illustrated inFigure 3 which will presently be described.

The end disc securing element 25 illustrated in Figures 3 and 4 isprovided with a cylindrical portion 26 which is internally threaded asshown at 27 In applying the element 25 to the end of the body member 10,the latter may be either previously formed with screw threadscorresponding to the threads 27, or the body member 10, if constructedof relatively deformable material, may be rotatably forced within thecylindrical portion 26 and the necessary threads may be cut or ressedtherein by the threaded ortion 27 of the connecting means. The

astening element 25 is formed with a shoulder 28 against the interiorsurface of which the end of the body portion 10 is adapted to abut andwhich is extended outwardly as at 29'to form a narrowed tubular orcylindrical portion similar to that shown at 16in the embodimentillustrated in smaller tubular portion 29 is adapted to be insertedwithin the aperture 17' of the end disc and also through the centralregistering perforation 30 of a washer 31 which is adapted to overliethe central marginal portion of the end disc 11. The outer end 32 of theportion 29 is adapted to be spun or flared outwardly as in the case ofthe previousl described embodiment so as to retain t e washer 31 andcause it to rigidly clamp the end disc against the outer surface of theshouldered portion 28..

It will be understood that the threaded connecting element 25 Ha beformed with an end disc retaining portion similar to the embodimentillustrated in Figure 1 instead of employing the washer 31 as in thecase just descri ed; and also that the disc retaining construction whichincludes a washer maybe employed in connection with the cylindricalortion 13 illustrated in Figures 1 and 2.

e various securing elements, end discs, and body portions may beconstructed of any suitable material, but in their preferred forms thebody members or barrels 10 are constructed of pasteboard or wood, theend discs'll of impregnated pasteboard, and the securing elements 12 and25 of'a-ductile metal, such as brass or the like.

It will also be understood that various Figure 1. The 1 changes andmodifications may be made in the embodiments illustrated and describedwithin the scope of the invention as defined by the following claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

1. In a bobbin, spool, or the like, comprising avbarrel or body memberand a centrally apertured end disc, a fastening element for securingsaid end disc to said body member comprising. a cylindrical portionreceiving and enclosing an end of said body member, provided with aportion having an internal shoulder against which said end abuts, awasher disposed against the outer surface of said end disc and having aperforation registering with the aperture of said end disc, a narrowedcylindrical portion extending outwardly from said shouldered portion andthrough said aperture andsaid perforation, and an annular flange flaredradially outwardly from said narrowed cylindrical portion and spun overthe margin of the perforation in the "washer whereby thewasher is causedto clamp the end disc tightly against the shouldered cylindrical portionof said fastening element.

2. In a bobbin, spool, or the like, comprising a disc, a fasteningelement for securing said end disc to said body member comprising acylindrical portion receiving and enclosing anend of said body member,an outer portion adapted to receive the end disc, the inner edge of saidcylindrical portion being crimped radially into the material of the bodymember, whereby longitudinal movement of said element is prevented, anda prong or spur struck from the material of said cylindrical portioninto the material of said body member, so as to prevent bothlongitudinal and rotative movement of said element relatively to thebody member.

3. In a bobbin, spool, or the like, comprising a tubular barrel or bodymember and a centrally apertured end disc, a fastening element forsecuring said end disc to said'body membencomprising a cylindricalportion receiving and enclosing member, the inner edge of saidcylindrical portion being crimped radially into the material of the bodymember, said cylindrical portion being provided at its outer end with .ashoulder of a width substantially equal to barrel or a body member andan end an end of said body over the margin of the end disc aperagainstthe exterior of said shouldered portion of the fastening element.

4. The combination set forth in claim 3 in which a plug is wedginglyinserted within the narrowed cylindrical portion of the fasteningelement and the body member.

5. In a bobbin, spool, or the like, comprising a barrel or body memberand'a centrally apertured end disc, a fastening element for securingsaid end disc to said body member comprising a cylindrical portion whichis internally threaded for the reception of an end of said body memberand provided with a portion having an internal shoulder against whichsaid end abuts, a washer disposed against the outer surface of said enddisc and having a perforation registering with the aperture of said enddisc, a narrowed cylindrical portion extending outwardly from saidshouldered portion and through said aperture and said perforation, andan annular flange flared radially outwardly from said narrowedcylindrical portion and spun over the margin of the perforation in thewasher whereby the washer is caused to clamp the end disc tightlyagainst the shouldered cylindrical portion of said fastening element.

- 6. In a bobbin, spool, or the like comprising a tubular barrel or bodymember and a centrally'apertured end disc, a hollow annular fasteningelement for securing said end disc to said body. member comprising acylindrical portion receiving and enclosing an end of said body memberand provided with an internal annular shoulder against.

which said end abuts, a narrowed hollow cylindrical portion extendingoutwardly from said shouldered portion, and an annular integral flangespun radially outwardl from said narrowed hollow cylindrical portlon andoverlapping the margin of the aperture in the end disc to retain saidend disc.

I 7. In a bobbin, spool, or the like comprising a tubular barrel or bodymember and a centrally apertured end disc, a hollow annular fasteninelement for securing said end disc to said b0 y member comprising acylindrical portion receiving and enclosing an end of said body memberand provided with an internal annular shoulder against which said endabuts, a narrowed hollow cylindrical porsignature.

tion extending outwardly from said shouldered portion, an annularintegral flangespun radially outwardly from said narrowed hollowcylindrical portion and overlapping the margin of the aperture in theend disc to retain said end disc, and a prong or spur struck from thematerial of said cylindrical portion into the material of said body mem-In testimony whereof I hereunto aflix my CHARLES K. DUNLAP,

end of the tubular A

